The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Dc-capacitor voltage drift phenomenon is the main technical issue of an n-level (n>;3) Diode-Clamped Converter (DCC). This paper presents a predictive current control strategy for a three-phase five-level DCC which enables simultaneous control of ac-side currents and balance of capacitor voltages. The paper derives a discrete-time dynamic model of a five-level DCC. Based on the derived model, a...
This paper presents a new sliding mode current control (SMCC) of three-phase grid-connected voltage source converters (VSCs). The proposed SMCC strategy employs a nonlinear sliding mode control scheme to directly calculate the required converter control voltage so as to eliminate the line current errors in the stationary reference frame without involving any synchronous coordinate transformation....
This paper analyzes a sequence network diagram of a converter fed islanded microgrid with single phase and three phase loads. The analysis shows that the converter needs to inject negative sequence current into the microgrid to keep its voltage balanced. This result is used to synthesize a control scheme that allows a single VSC with standard inductor interface and dq frame current control to operate...
This paper presents a modified predictive current control strategy which allows one to have control over the spectrum of the load current. The proposed method uses a model of the system to predict the behavior of the current for each possible voltage vector generated by the inverter. For that purpose, at each sampling interval, signal predictions are evaluated using a cost function that quantifies...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.